How to Grow Bluechip Juniper
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Bluechip Juniper
Juniperus horizontalis 'Blue Chip'
shrubBluechip is a low-growing, spreading juniper cultivar known for its striking silvery-blue foliage and compact, dense growth habit. It grows as a groundcover, typically reaching 12-18 inches tall with a spread of 3-4 feet, making it ideal for landscape design and erosion control. The foliage maintains its blue color year-round and becomes slightly more purple-toned in winter.
When should you plant Bluechip Juniper in your zone?
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Example Bluechip Juniper timeline · Pittsburgh, PA (Zone 6b)
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Plant Bluechip Juniper
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Bluechip Juniper
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9; extremely cold hardy and drought tolerant once established
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Get my Bluechip Juniper timeline →Growth Stages
Vegetative Growth
Year 1-2Plant spreads outward along the ground, filling in space; foliage becomes denser and more silvery-blue
Maintain occasional watering during dry spells. No pruning needed unless shaping for specific application. Ensure drainage remains excellent.
Mature Groundcover
Year 2+ (indefinite)Fully spread, dense mat of silvery-blue foliage; compact, mounding form achieved; excellent color development
Minimal care required. Reduce watering significantly. Remove any dead or diseased branches. No fertilizer needed.
Winter Dormancy
3-4 monthsFoliage may develop purple or bronze tones in cold temperatures; plant remains evergreen and ornamental
No watering needed during winter months. Winter color change is normal and desirable. Excellent snow/ice tolerance.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water or insecticidal soap if infestation occurs; improve air circulation; avoid overhead watering
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Prune infected branches; treat with horticultural oil in early spring; remove heavily infested plants
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Hand-pick bags in fall/winter; apply Bacillus thuringiensis (Bt) in early summer to young caterpillars
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Prune affected branches 12 inches below dead tissue; improve drainage and air circulation; avoid overhead watering
Uses
Landscape Groundcover
HouseholdBluechip is a premier choice for landscape design as a groundcover that requires minimal maintenance. Its silvery-blue foliage provides year-round ornamental interest, making it ideal for rock gardens, slopes, and large areas needing erosion control. [source]
Drought-Tolerant Landscaping
HouseholdOnce established, Bluechip requires virtually no supplemental watering, making it an excellent choice for xeriscape gardens and water-conservation landscaping. Its low maintenance needs reduce landscape labor and utility costs. [source]
Wildlife Habitat
WildlifeBluechip juniper provides shelter and nesting habitat for ground-dwelling birds and small mammals. The dense foliage offers protection from predators and weather. [source]
Decorative Arrangements
CraftThe attractive silvery-blue foliage can be pruned and used fresh or dried in floral arrangements and decorative displays. The color and texture add visual interest to bouquets and landscape installations. [source]
Slope and Bank Stabilization
HouseholdThe spreading growth habit and extensive root system make Bluechip ideal for stabilizing slopes and preventing soil erosion on hillsides and embankments. Once established, it forms a protective mat. [source]
Harvest Tips
Bluechip is an ornamental shrub and is not harvested for food or material. However, you can prune branches year-round for decorative arrangements or to maintain shape. Best pruning time is early spring before new growth, or late summer for minor shaping.
Fun Facts
- 🌱 Bluechip was introduced by Iseli Nursery in Oregon and is a trademarked cultivar selection, meaning it is a specifically chosen variant with consistent characteristics that differ from the species Juniperus horizontalis.
- 🌱 The silvery-blue color comes from a waxy coating on the foliage called a 'glaucous bloom' that reflects light and provides UV protection while giving the plant its distinctive appearance.
- 🌱 Junipers, including Bluechip, have been cultivated and valued for thousands of years; juniper wood is highly aromatic and has been used for incense, woodworking, and traditional medicine across many cultures.
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